SC.4.L.17.3
Form A
Teacher Guide
1. The Sun is the original source of energy for most living things. Which organisms on Earth can convert this solar energy directly into food?
A. humans
B. animals
C. insects
D. plants
Explanation: Plants convert sunlight into usable energy through a process called photosynthesis. Photosynthesis converts light energy into the chemical energy of sugars and other organic compounds.2. The picture below shows organisms that live in a marsh.
How does energy move in this food chain?
A. heron, fish, sun, grass, water bugs
B. water bugs, sun, grass, fish, heron
C. fish, water bugs, sun, grass, heron
D. sun, grass, water bugs, fish, heron
Explanation: The Sun’s energy is absorbed by the grass. The grass is consumed by the water bugs who in turn are consumed by the fish. Lastly, the fish are consumed by the heron.3. The cheetah is the fastest land animal on Earth. Able to reach speeds of up to 65 miles per hour, the cheetah uses its speed to catch its prey, mostly mammals. The cheetah's prey is the best source of which of the following?
A. oxygen
B. energy
C. carbon dioxide
D. water
Explanation: Carnivores are predators. They hunt and eat other animals to absorb their energy and survive.4. People are part of food chains. What is the role of people in a food chain?
A. decomposer
B. herbivore
C. consumer
D. producer
Explanation: The role that people play as part of a food chain is that of a consumer. As the top of the food chain, we consume both plants and animals.5. The picture below shows a food chain.
What part of the food chain is missing?
A. carnivore
B. consumer
C. herbivore
D. producer
Explanation: The missing component of the food chain is the plant (producer) because all other components are shown.1